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Zimovniki

47.146° N   42.470° E  ·  65 M
82 /100
PEAK
A genuinely good night — 6 hours of clear, dark sky from 22:00.
BEST WINDOW 22:00–04:00 · ASTRO DARK 22:00–03:00 · MOON 0%
Transparency
0.85
Seeing
0.97
Cloud
6%
Moon
0%

Excellent tonight

Hour by hour, local to Zimovniki. Colour encodes the score and nothing else; every other measurement is luminance.

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
20
21
22
23
00
01
02
03
04
05
0
40
82
81
75
76
73
61
17
0
BEST WINDOW
Low cloud
1%
0%
0%
0%
0%
0%
0%
6%
9%
2%
Mid cloud
4%
6%
5%
5%
8%
3%
2%
13%
14%
38%
High cloud
48%
55%
7%
1%
2%
4%
6%
1%
0%
4%
Transparency
0.89
0.85
0.74
0.66
0.62
0.65
0.59
0.49
0.11
0.10
Seeing
0.79
0.84
0.97
0.95
0.84
0.71
0.66
0.73
0.74
0.64
Moon clear
down
down
down
down
down
down
down
down
down
down
Inspect

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Why this hour scored what it did
20 Clouded out · 0/100
Starting from
100
Cloud
−30
Transparency
−3
Seeing
−4
Moonlight
−0
Darkness
−64
Score
0
CLOUD 50% LOW 1% MID 4% HIGH 48% SUN -5.7° MOON -4.1° / 0% WIND 4 TEMP 28°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.

What are you doing tonight?

The same forecast, weighted for the target. Planetary work barely cares about moonlight; long exposures die on high cloud a visual observer would never notice.

SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 77

Darkness and moonlight dominate. Faint fuzzies need a genuinely dark sky more than they need steady air.

2022000204
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
SET UP 20:30 · OBSERVE 21:00–05:00 · 8H · MEAN 70

Seeing is everything and moonlight is irrelevant. Bright targets punch through twilight, so darkness barely counts.

2022000204
CLOUD RETURNS 05:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 74

Tolerates soft seeing, but high cloud wrecks a wide frame and moonlight raises the background everywhere.

2022000204
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 66

Needs conditions to hold still for hours. Sustained transparency matters more than any single good hour.

2022000204
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
SET UP 21:30 · OBSERVE 22:00–04:00 · 6H · MEAN 79

Naked eye, whole sky. Total cloud and moonlight are the only things that count.

2022000204
HIGH CLOUD CLEARS 22:00TWILIGHT BEGINS 04:00
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The next week of nights

Tonight · 12 Aug
82
Excellent
MOON 0%
22:00–04:00
Tomorrow · 13 Aug
93
Excellent
MOON 2%
22:00–04:00
Friday · 14 Aug
94
Excellent
MOON 6%
22:00–04:00
Saturday · 15 Aug
87
Excellent
MOON 13%
03:00–04:00
Sunday · 16 Aug
95
Excellent
MOON 21%
03:00–04:00
Monday · 17 Aug
47
Fair
MOON 30%
03:00–04:00
Tuesday · 18 Aug
3
Clouded out
MOON 39%
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Nearby locations

About this forecast

Conditions for Zimovniki, Russia are computed from the MET Norway forecast model for these exact coordinates, combined with sun and moon positions we calculate directly. The score weighs cloud cover by layer, atmospheric transparency, estimated seeing, moonlight and how dark the sky actually gets. Read the full method →